184 BOTANY OF MICHIGAN 



Township. Also in swales between dune lines on the prairies in Akron 

 Township." C. A. Davis. 



Liparis loeselii (L.) Richard. Fen orchis. Noticed in a swampy 

 place near Mud Lake southwest of Fostoria. Probably frequent 

 throughout. 



Aplectrum hyemale (Muhl.) Torr. Putty-root. Rich shaded ground. 

 Frequent. 



PIPERACEAE. Pepper Family 



Saururus cernuus L. Lizard's tail. " Occasional along streams in 

 Columbia Township." C. A. Davis. 



SALICACEAE. Willow Family 



Salix nigra Marsh. Black willow. Common in low places especially 

 along small streams. Occasional in damp sand on the beach of Saginaw 

 Bay. 



Salix amygdaloides Anders. Peach-leaved willow. Common in rich 

 damp ground and usually mixed with other trees. " Borders of the 

 prairies and on low sand dunes along Saginaw Bay in Akron and Wisner 

 townships." C. A. Davis. 



Salix pentandra L. Ivy-leaved willow. Occasionally planted as an 

 ornamental tree. Not spreading. 



Salix lucida Muhl. Shining willow. Common in damp and swampy 

 ground with other willows. 



Salix serissima (Bailey) Fernald. Autumn willow. In low ground 

 near Cat Lake. Pistillate catkins were still clinging to the tree August 

 6, 1910. 



Salix alba L. White willow. Planted for ornament and inclined to 

 escape. 



Salix alba vitellina (L.) Koch. Golden willow. "Planted in many 

 places as a shade tree." C. A. Davis. 



Salix babylonica L. Weeping willow. Planted as an ornamental tree 

 but not escaping. 



Salix longifolia Muhl. Sand-bar willow. Common in low places, 

 about the small lakes, and along the banks of small streams. 



Salix pedicellaris Pursh. Bog willow. Wet open boggy places. 

 Frequent. 



Salix discolor Muhl. Glaucus willow. Frequent in low places with 

 other willows. 



jg Salix petiolaris Sm. Slender willow. Common in wet ground, 

 especially in the vicinity of the small lakes. 

 • Salix humilis Marsh. Prairie willow. Noticed on low sand ridges in 

 the northern part of Akron Township by Prof. C. A. Davis. Probably 

 frequent throughout. 



